INVESTIGATION　OF　ACTIVE　CONTROL　FOR　DYNAMIC　STABILITY　OF　HELICOPTER　ROTOR－BODY　COUPLING

作     者：Ling Aimin(Chinese Helicopter Research and Design Institute,Jindezhn, Jiangxi, China, 333001) 

作者机构：Chinese Helicopter Res. Des. Inst. Jindezhen Jiangxi 333001 China 

出 版 物：《Chinese Journal of Aeronautics》 (中国航空学报（英文版）)

年 卷 期：1996年第9卷第4期

页      面：269-272页

核心收录：

学科分类：080103[工学-流体力学] 08[工学] 080104[工学-工程力学] 0801[工学-力学（可授工学、理学学位）] 

主　　题：tabs (control surfaces) helicopters rotor body interactions coupling dynamic stability active control 

摘      要：A study is conducted on the feasibility of helicopter ground and air resonanceby using actively controlled tabs mounted at the trailing edge of an aerofoil. A method isdeveloped to obtain the optimal feedback control law through constructing a referencemodel according to requirements of stability levels in the modal space. The effects of rotorspeed and length and location of tabs on the control law are analyzed, and it is found possible that a controller can be designed into constant feedback gain against rotor speed andto feed back only to the dominant system states to eliminate the unstable range of rotorspeed.